APA (7th ed.) Citation

Market Communications, inc, Williams, R. H., & Blair, J. (1979). Prairie animals. Encyclopdia Britannica.

Chicago Style (17th ed.) Citation

Market Communications, inc, Ralph H. Williams, and Jay Blair. Prairie Animals. Chicago: Encyclopdia Britannica, 1979.

MLA (9th ed.) Citation

Market Communications, inc, et al. Prairie Animals. Encyclopdia Britannica, 1979.